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bogdanovich [222]
3 years ago
5

PLEASE HELP!!

Physics
1 answer:
defon3 years ago
7 0
The right answer is A
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Since the density of air decreases with an increase in temperature, but the bulk modulus B is nearly independent of temperature,
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To develop this problem it is necessary to apply the concept related to the speed of sound waves in fluids.

By definition we know that the speed would be given by

v=\sqrt{\frac{\beta}{\rho}}

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\rho =Density of air

From the expression shown above we can realize that the speed of sound is <em>inversely proportional</em> to the fluid in which it is found, in this case the air. When the density increases, the speed of sound decreases and vice versa.

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hjlf

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In what state of matter can conduction occur.
son4ous [18]

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A mountain climber increases their height from 200 meters to 400 meters. What affect will this have on their potential energy?
Yanka [14]

Answer:

At 400 m the potential energy of the mountain climber doubled the initial value.

Explanation:

Given;

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Then, at 400 m, P.E₂ = 2 x 200mg = 2 x P.E₁

Therefore, at 400 m the potential energy of the mountain climber doubled the initial value.

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